DIELECTRIC STUDIES ON PVA-NH4SCN COMPLEXES

Authors
AGRAWAL SL SHUKLA PK
Citation
Sl. Agrawal et Pk. Shukla, DIELECTRIC STUDIES ON PVA-NH4SCN COMPLEXES, Physica status solidi. a, Applied research, 163(1), 1997, pp. 247-254
Citations number
18
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica status solidi. a, Applied research → ACNP
ISSN journal
00318965
Volume
163
Issue
1
Year of publication
1997
Pages
247 - 254
Database
ISI
SICI code
0031-8965(1997)163:1<247:DSOPC>2.0.ZU;2-K
Abstract
The dielectric behaviour of polyvinyl alcohol (PVA) films complexed wi th ammonium thiocyanate (NH4SCN) have been investigated at various fre quencies (from 100 Hz to 10 kHz) in the temperature range from 303 to 383 K. Tile relative permittivity (epsilon'), loss tangent (tan delta) and relaxation time (tau) were found to be temperature and dopant con centration dependent. The experimental results reveal alpha, alpha bet a and beta-types of relaxation processes For PVA-NH4SCN complexes.